<template>
  <view v-if="goods_info.goods_name">
    <!-- 轮播图 -->
    <swiper :indicator-dots="true" :autoplay="true" :interval="3000" :duration="1000" :circular="true" >
      <swiper-item v-for="(item,i) in goods_info.pics" :key="i">
        <image :src="item.pics_big" @click="preview(i)"></image>
      </swiper-item>      
    </swiper>
    <!-- 商品信息 -->
    <view class="goods-info-box">
      <view class="price">
        ￥{{goods_info.goods_price}}
      </view>
      <view class="goods-info-body">
        <view class="goods-name">
          {{goods_info.goods_name}}
        </view>
        <view class="favi">
          <uni-icons type="star" size="18" color="gray"></uni-icons>
          <text>收藏</text>
        </view>
      </view>
      <view class="yf">快递：免运费</view>
    </view>
    <!-- 商品详情信息 -->
    <view class="good-detail">
      <rich-text :nodes="goods_info.goods_introduce"></rich-text>
    </view>
    
    <view class="goods-nav">
      <uni-goods-nav :fill="true"  :options="options" :buttonGroup="buttonGroup"  @click="onClick" @buttonClick="buttonClick" />
    </view>
    
  </view>
</template>

<script>
  import {mapState,mapMutations,mapGetters} from 'vuex'
  export default {
    data() {
      return {
        goods_info:{},
        options: [ {
        			icon: 'shop',
        			text: '店铺',        		
        			infoBackgroundColor:'#007aff',
        			infoColor:"red"
        		}, {
        			icon: 'cart',
        			text: '购物车',
        			info: 0
        		}],
        	    buttonGroup: [{
        	      text: '加入购物车',
        	      backgroundColor: '#ff0000',
        	      color: '#fff'
        	    },
        	    {
        	      text: '立即购买',
        	      backgroundColor: '#ffa200',
        	      color: '#fff'
        	    }
        	    ]
        	  
      };
    },
    computed:{
      ...mapState('m_cart',['cart']),
      ...mapGetters('m_cart',['total'])
    },
    watch:{
      total:{
        handler(newVal){
          const findResult=this.options.find(x=>x.text==='购物车')
          if(findResult){
            findResult.info=newVal
          }
        },
        immediate:true
      }
    },
    
    methods:{
      ...mapMutations('m_cart',['addToCart']),
      // 获取详情信息
      async getGoodDetails(goods_id){
        const {data:res}=await uni.$http.get('/api/public/v1/goods/detail',{goods_id})
        if(res.meta.status!==200) return uni.$showMsg()
        res.message.goods_introduce = res.message.goods_introduce.replace(/<img /g, '<img style="display:block;" ').replace(/webp/g, 'jpg')
        this.goods_info=res.message
      },
      // 实现轮播图的预览效果
      preview(i){
        uni.previewImage({
          current:i,
          urls:this.goods_info.pics.map(x=>pics_big)
        })
      },
      // 底部左侧按钮
      onClick(e){
        if(e.content.text==='购物车'){
          uni.switchTab({
            url:'/pages/cart/cart'
          })
        }
      },
      
      // 右侧按钮
      buttonClick(e){
        if(e.content.text==='加入购物车'){
          this.addToCart({
                     goods_id: this.goods_info.goods_id, // 商品的Id
                     goods_name: this.goods_info.goods_name,// 商品的名称
                     goods_price: this.goods_info.goods_price, // 商品的价格
                     goods_count: 1, // 商品的数量
                     goods_small_logo: this.goods_info.goods_small_logo, // 商品的图片
                     goods_state: true// 商品的勾选状态
          })
        }
      }
      
    },
    onLoad(options) {
      const goods_id=options.goods_id
      this.getGoodDetails(goods_id)
    },
  }
</script>

<style lang="scss">
  swiper{
    height: 750rpx;
    image{
      width: 100%;
      height: 100%;
    }
  }
  // 商品信息区域的样式
  .goods-info-box {
    padding: 10px;
    padding-right: 0;
  
    .price {
      color: #c00000;
      font-size: 18px;
      margin: 10px 0;
    }
  
    .goods-info-body {
      display: flex;
      justify-content: space-between;
  
      .goods-name {
        font-size: 13px;
        padding-right: 10px;
      }
      // 收藏区域
      .favi {
        width: 120px;
        font-size: 12px;
        display: flex;
        flex-direction: column;
        justify-content: center;
        align-items: center;
        border-left: 1px solid #efefef;
        color: gray;
      }
    }
  
    // 运费
    .yf {
      margin: 10px 0;
      font-size: 12px;
      color: gray;
    }
    
  }
  // 底部商品导航
  .goods-nav{
    position: fixed;
    z-index: 999;
    bottom: 0;
    left: 0;
    width: 100%;
  }
  .good-detail{
    padding-bottom: 50px;
  }
</style>
